Indexed on: 19 Jul '16Published on: 19 Jul '16Published in: Paläontologische Zeitschrift
Recently the concept of natural selection in Darwin’s sense has been criticized by some authors. It has been argued that this concept does not explain certain phenomena of evolutionary change, especially in the reach of macroevolution. Some biologists, therefore, demanded for evolution a new model of selection which focuses internal factors in phytogeny. — This paper is a brief discussion of some aspects of “internal” selection and its meaning in contemporary evolutionary biology. The argument of the paper is that evolution can only be explained by a theory taking cognizance of interactions between external and internal selective agencies. Such a theory would be a systems theory of evolution.